A Bega Valley dentist on the New South Wales far south coast says a proposal to fluoridate the area's water supplies would improve the dental health of people living in the region.

The Bega Valley Shire Council currently only fluoridates the Bega-Tathra system but it's planning to introduce filtration systems when it upgrades the remaining three supplies serving Bemboka, Merimbula and the southern end of the shire.

The council is seeking feedback on the possibility of introducing fluoride as part of the upgrade.

Dentist Belinda Cardwell, from Merimbula, says people living in parts of the region without fluoride are more likely to have tooth decay.

“I'm seeing children that need full clearances that are going to lose all their baby teeth,” she said.

“I'm seeing people that don't have the money to access the dental care that they need so they're losing their teeth at a very young age.

“And then I'm seeing people who have problems with dentures.

“There's really no question, it just needs to be done.”

Ms Cardwell says there’s evidence that fluoride is a good thing.

“I just saw a gentleman who grew up in Sydney,” she said.

“He's in his 30s and has no cavities and perfectly straight white teeth.

“We see a totally different dental experience in people who have grown up in non-fluoridated communities in terms of decay and tooth loss.